Brake shoe



1,639,838 1927' J. R. 'CAUTLEY BRAKE SHOE Filed March 9, 1927 lNVENTOR JoH r RCAuTLaY ATTORNEY Patented Aug. 23, 1927.

UNITED STATES 1,639,838 PATENT OFFICE.

JOHN R. CAUTLEY, OF SOUTH BEND, INDIANA, ASSIGNOR TO BENDIX BRAKE GOM- PANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

BRAKE SHOE.

Application filed March 9, 1927'. Serial No. 173,813.

This invention relates to brakes, and is illustrated as embodied in an auxiliary shoe for a three-shoe internal expanding automobile brake. An object of the invention is to provide a light and inexpensive shoe which is yet strong enough for use in a heavy truck brake.

An important feature of the invention has to do with reinforcing and stiffening means for an outer arcuate band carrying the lining, by means including spaced side or web portions secured to the band, for example by being formed with lateral flanges underlying and secured to the band, and which are preferabl united (integrally united in the embodiment illustrated in the drawing) by a bottomportion opposite and generally parallel to the band.

Thus the, shoe may be regarded as having a channel-section stificning member arranged with its channel facing toward a channel-section outer band.

Other features of novelty relate to defleeting spaced stifiening webs, such as the sides of the above-described channel-section member, into engagement with each other and extending them at the end of theshoe as a double-thickness projecting arm, to an improved mounting for a cam-engaging roller, and to other novel and desirable features of construction which will be apparent from the following description of one illustrative embodiment shown in the accompanying drawing, in which;

Figure 1 is a side elevation of the shoe;

Figure 2 is a section through the center ofthe shoe, on the line 2-2 of Fi re 1;

Figure 3 is a section through t e end of the shoe, on the line 33 of Figure 1;

Figure 4 is an elevation of the lower end of the shoe, looking in the direction of the arrows 44 in Figure 1; and

Figure 5 is a partial section at the lower end of the shoe.

The illustrated shoe is intended for use as the auxiliary shoe of a three-shoe automobile brake of the type described in my prior application No. 62,078, filed October 12, 1925, from which prior application part of the subject-matter of the present application is continued.

The shoe comprises an outer arcuate band 10, to which the brake lining 12 is riveted A or otherwise secured, and which is prefer ably reinforced at its edges by low flanges 14, in combination with stiffening means shown as mcludmg a channel-section member having lateral flanges 16 underlying and secured to'the band 10, side portions or webs 18 spaced apart from each other, and a bottom portion 20 integrally unitin the inner edges of webs 18 opposite the and 10 and extending generally parallel to the band. It will be seen that the shoe may be regarded as comprising a channel-section stiffening member arranged with its channel facing toward the channel of a channel-section band.

At the lower end of the shoe, the side webs 18 are deflected into engagement with each other and extended to format double-thickness arm 22 shown as provided with a bushing 24 for a pivot or anchor.

At the upper end of the shoe, a roller 26, for engagement with the brake-applying cam (not shown), is arranged inside of the channel of the stifl'ening member, and is formed with pivots or pintles 28 mounted in the side portlons or'webs 18.

While one illustrative embodiment has been described in detail, it is not my intention to limit the scope-of the invention to that particular embodiment, or otherwise than by the terms of the appended claims.

Tclaim: I

1. A brake shoe comprising, in combination, an outer arcuate band, and an integral pressed metal stifl'ening member for said and having flanges underlying and secured i to said band and side portions forming stiffening webs for the band and integrally united at their edges opposite said band.

2. A brake shoe comprising, in combination, an outer arcuate band, and an integral pressed metal stiifening member for said band having oppositely-directed flanges extending toward the outer edges of the band and underlying and secured to said band and side portions forming stiffening webs for the band and integrally united at their edges opposite said band.

3. A brake shoe comprising, in combination, an outer arcuate band, and a channe1- section stifiening member including spaced side portions secured to said band, the channel-section member having its bottom integrally uniting said side portions opposite the band and extending generally parallel to the band.

4. A brake shoe comprising, in combination, an outer arcuate band, and stiffening means including spaced side portions secured. to said band, the stifi'ening means having a. bottom portion uniting said side portions opposite the band and extending generally parallel to the band.

5. A brake shoe comprising, in combination,"an outer arcuate band, and stiffening means for the band including two generallyparallel spaced-apart web portions each of which iscintegral with a continuous flange underlying and secured to" said band.

6. A brake shoe comprisin a channel- Sectien band and i o q e miireactionstifiening member secured together with the channel of each facing toward the other.

7. A brake shoe comprising an arcuate band and a channel-section stiffening member secured to the band with its channel facing toward the band.

8. A brake shoe comprising an arcuate band and stiifening means for the band inaeeases eluding spaced-apart webs which are deflected adjacent one end oi? the shoe into enga ement with each other and extended as a double-thickness projecting arm.

' 9. A brake shoe comprising an arcuate band and a channel-section stiffening member for the band includin s aced-a art integrally connected sides w ic are eflected adjacent one end of the shoe into engagement with each other and extended as a double-thickness projecting arm. I

10. A brake shoehaving spaced-apart integrally-connected .stifieningweb portions and Ya roilerrarranged rhetweeneand pisetaiiy mounted on said portions.

11. A brake shoe having a channel-section stiffening member and a roller arranged within the channel of said member and pivotally mounted thereon.

In testimony whereof, I have hereunto signed my name.

JOHN R. CAUTLEY. 

